Merge pull request #499 from roc-lang/update/roc-nightly-2026-09-23

Upgrade Roc nightly to September 23 for 0.23.0

Author: lukewilliamboswell

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
       - uses: roc-lang/setup-roc@cbe782d6f165b89c87d99f50a59ac4f5f73b4427 # ratchet:roc-lang/setup-roc@v0.3.0
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
       - name: Install Rust toolchain
         run: |
           rustup toolchain install "${{ needs.rust-version.outputs.version }}" --profile minimal --target x86_64-unknown-linux-musl --component llvm-tools-preview
@@ -63,7 +63,7 @@ jobs:
       - uses: roc-lang/setup-roc@cbe782d6f165b89c87d99f50a59ac4f5f73b4427 # ratchet:roc-lang/setup-roc@v0.3.0
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
       - name: Install Rust toolchain
         shell: bash
         run: |
@@ -108,7 +108,7 @@ jobs:
       - uses: roc-lang/setup-roc@cbe782d6f165b89c87d99f50a59ac4f5f73b4427 # ratchet:roc-lang/setup-roc@v0.3.0
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
       - name: Install Rust toolchain
         shell: bash
         run: |

.github/workflows/deploy-docs.yml

@@ -40,7 +40,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Restore released docs
         env:

.github/workflows/release.yml

@@ -114,7 +114,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Install Zig
         uses: mlugg/setup-zig@8d6198c65fb0feaa111df26e6b467fea8345e46f
@@ -215,7 +215,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Install Rust
         shell: bash
@@ -260,7 +260,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Create docs staging tree
         run: mkdir -p docs-site
@@ -432,7 +432,7 @@ jobs:
         uses: roc-lang/setup-roc@bd311e2fb815a3d2255f7ee14a922f0b736e020b
         with:
           version: nightly-new-compiler
-          nightly-tag: nightly-2026-09-22-e494788
+          nightly-tag: nightly-2026-09-23-c7852fd
 
       - name: Download release metadata
         uses: actions/download-artifact@v8

docs/releases/0.23.0.md

@@ -4,7 +4,7 @@
 app [main!] { pf: platform "{{PLATFORM_URL}}" }
 ```
 
-Requires the Roc new-compiler nightly **`nightly-2026-09-22-e494788`** or later.
+Requires the Roc new-compiler nightly **`nightly-2026-09-23-c7852fd`** or later.
 
 ## Write the script in Roc, not bash
 

flake.lock

@@ -75,7 +75,7 @@
           default = pkgs.mkShell {
             packages = [
               # Keep in sync with the nightly pinned in .github/workflows.
-              pkgs.rocpkgs."nightly-2026-09-04-c125b82"
+              pkgs.rocpkgs."nightly-2026-09-23-c7852fd"
               pkgs.python3
               rustToolchain
               pkgs.simple-http-server